Skate frame



FIG. 1 is a perspective view of a skate frame, showing one side, one end, and a bottom of my new design;

FIG. 2 is a view of a second side thereof;

FIG. 3 is a view of a second end thereof;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof. 

I claim the ornamental design for a skate frame, as shown and described. 